Shelter



FIG. 1 is a perspective view of a shelter, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a perspective view of a second embodiment;

FIG. 8 top plan view thereof;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a left side elevational view thereof;

FIG. 12 is a right side elevational view thereof;

FIG. 13 is a perspective view of a third embodiment;

FIG. 14 is a top plan view thereof;

FIG. 15 is a front elevational view thereof;

FIG. 16 is a rear elevational view thereof;

FIG. 17 is a left side elevational view thereof; and,

FIG. 18 is a right side elevational view thereof. 

The ornamental design for a shelter, as shown and described. 